Merge bitcoin/bitcoin#30551: doc: mention optional dependencies (qren… #281

Job	Run time
ASan + LSan + UBSan + integer, no depends, USDT	1h 6m 33s
test each commit	0s
Win64 native, VS 2022	1h 30m 40s
macOS 13 native, x86_64, no depends, sqlite only, gui	40m 15s
	3h 17m 28s

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